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<pre class="textdiagram" id="fig56">
+-----------+   +-----------+   +-----------+
|           |   |           |   |           |
|  Client   |   |  Client   |   |  Client   |
|           |   |           |   |           |
\-----------/   \-----------/   \-----------/
      ^               ^               ^
      |               |               |
      \---------------+---------------/
"Give me coffee"      |         "Give me tea"
                      v
                /-----------\
                |           |
                |  Broker   |
                |           |
                \-----------/
                      ^
                      |
      /---------------+---------------\
      |               |               |
      v               v               v
/-----------\   /-----------\   /-----------\
|  "Water"  |   |   "Tea"   |   | "Coffee"  |
+-----------+   +-----------+   +-----------+
|           |   |           |   |           |
|  Worker   |   |  Worker   |   |  Worker   |
|           |   |           |   |           |
+-----------+   +-----------+   +-----------+
</pre>
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